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CPU Sim is a software development environment for the simulation of simple computers. It was developed by Dale Skrien to help students understand computer architectures. With this application the user is able to simulate new or existing simple CPUs. Users can create new virtual CPUs with custom machine language instructions, which are implemented by a sequence of micro instructions. CPU Sim allows the user to edit and run assembly language programs for the CPU being simulated. CPU Sim has been programmed using the Java Swing package. This means that it is platform independent (runs on every platform that has a Java virtual machine installed). == Wombat 1 Sample CPU == A sample computer system, the Wombat 1, is provided with CPU Sim. It has the following registers: * pc (program counter); * acc (accumulator); * ir (instruction register); * mar (memory address register); * mdr (memory data register); * status. The assembly language of the Wombat 1 computer consists of 12 instructions. Each instruction is stored on 16 bit's, the first 4 are the Opcode and the other 12 are the address field. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「CPU Sim」の詳細全文を読む スポンサード リンク
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